> Not only the anonymity or pseudo-anonymity is a magnet for toxic people, it also brings out the worst in people.

For one, yes, but Facebook has clear names (usually) and still it degraded quite a bit and hosts obscure trends such as flat eathers. So I don't think anonymity is really all too important. Maybe it's rather that you can now find like-minded people to strengthen your opinion, even when there are actually really few overall.